dotfiles/init/FiraCode/clojure/fira_code/glyphs.clj

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2020-05-07 09:30:45 +02:00
(ns fira-code.glyphs
(:refer-clojure :exclude [load])
(:require
[clojure.java.io :as io]
[clojure.string :as str]
[fipp.edn :as fipp]
[fira-code.coll :as coll]
[flatland.ordered.map :refer [ordered-map]]))
(def ^:dynamic *str)
(def ^:dynamic *pos)
(defn current-char [] (nth @*str @*pos))
(defn advance! [] (swap! *pos inc))
(declare parse-anything!)
(defn skip-ws! []
(loop []
(case (current-char)
\space (do (advance!) (recur))
\newline (do (advance!) (recur))
nil)))
(defn parse-escaped-string! []
(skip-ws!)
(when (= \" (current-char))
(let [sb (StringBuilder.)]
(->
(loop []
(advance!)
(let [ch (current-char)]
(cond
(= ch \\) (do (.append sb \\) (advance!) (.append sb (current-char)) (recur))
(= ch \") (do (advance!) (str sb))
:else (do (.append sb ch) (recur)))))
(str/replace "\\012" "\n")
(str/replace "\\\"" "\"")
(str/replace "\\\\" "\\")))))
(defn parse-string! []
(skip-ws!)
(let [sb (StringBuilder.)]
(loop []
(let [ch (current-char)]
(cond
(#{\space \newline \{ \} \( \) \; \, \" \=} ch) sb
:else (do (.append sb ch) (advance!) (recur)))))
(let [res (str sb)]
(cond
(re-matches #"-?[1-9][0-9]*" res) (Integer/parseInt res)
(re-matches #"-?[0-9]+\.[0-9]+" res) (Double/parseDouble res)
(re-matches #"[a-zA-Z][a-zA-Z\.0-9]*" res) (keyword res)
:else res))))
(defn expect [c]
(assert (= c (current-char))
(str "Expected '" c
"', found " (current-char)
" at " @*pos
" around here:\n" (subs @*str (max 0 (- @*pos 100)) (min (count @*str) (+ @*pos 100))))))
(defn parse-map! []
(skip-ws!)
(when (= \{ (current-char))
(advance!)
(loop [m (ordered-map)]
(skip-ws!)
(if (= \} (current-char))
(do (advance!) m)
(let [k (or (parse-escaped-string!) (parse-string!))
_ (do (skip-ws!) (expect \=) (advance!))
v (parse-anything!)
v (if (keyword? v) (name v) v)
_ (do (skip-ws!) (expect \;) (advance!))]
(recur (assoc m k v)))))))
(defn parse-list! []
(skip-ws!)
(when (= \( (current-char))
(advance!)
(loop [l []]
(skip-ws!)
(if (= \) (current-char))
(do (advance!) l)
(let [v (parse-anything!)
_ (skip-ws!)
_ (when (not= \) (current-char))
(expect \,)
(advance!))]
(recur (conj l v)))))))
(defn parse-anything! []
(skip-ws!)
(or
(parse-map!)
(parse-list!)
(parse-escaped-string!)
(parse-string!)))
(defn parse [s]
(binding [*str (atom s)
*pos (atom 0)]
(parse-anything!)))
(def escapes {"\n" "\\012"
"\"" "\\\""
"\\" "\\\\"})
(def escape-re #"[\n\"\\]")
(defn- serialize-impl [form]
(cond
(string? form) (if (re-matches #"[a-zA-Z0-9._/]+" form)
form
(str \" (str/replace form escape-re escapes) \"))
(keyword? form) (name form)
(number? form) (str form)
(instance? clojure.lang.MapEntry form)
(str
(serialize-impl (key form))
" = "
(if (= ".appVersion" (key form)) ;; https://github.com/googlefonts/glyphsLib/issues/209
(str \" (val form) \")
(serialize-impl (val form)))
";")
(sequential? form) (if (empty? form)
"(\n)"
(str "(\n" (str/join ",\n" (map serialize-impl form)) "\n)"))
(map? form) (if (empty? form)
"{\n}"
(str "{\n" (str/join "\n" (map serialize-impl form)) "\n}"))))
(defn serialize [font]
(str (serialize-impl font) "\n"))
; (-> (slurp "FiraCode.glyphs") parse serialize (->> (spit "FiraCode_saved.glyphs")))
(defn load [path]
(println (str "Parsing '" path "'..."))
(parse (slurp path)))
(defn save! [path font]
(println (str "Saving '" path "'..."))
(spit path (serialize font)))
(defn -main [& args]
(let [font (-> (slurp "FiraCode.glyphs") parse)]
(with-open [os (io/writer "clojure/FiraCode.edn")]
(binding [*out* os]
(fipp/pprint font {:width 200})))))
(defn update-code [font key name f & args]
(let [idx (coll/index-of #(= (:name %) name) (get font key))]
(apply update-in font [key idx :code] f args)))
(def weights
{:Light "B67F0F2D-EC95-4CB8-966E-23AE86958A69"
:Regular "UUID0"
:Bold "4B7A3BAF-EAD8-4024-9BEA-BB1DE86CFCFA"})
(defn layer [l]
{ :id (condp = (:layerId l)
(:Light weights) "Light"
(:Regular weights) "Regular"
(:Bold weights) "Bold"
(:layerId l))
:width (:width l) })
(defn save-not600 []
(let [font (-> (slurp "FiraCode.glyphs") parse)]
(with-open [os (io/writer "clojure/FiraCode_not600.edn")]
(binding [*out* os]
(let [glyphs (for [glyph (:glyphs font)
:when (->> (:layers glyph)
(filter #(contains? (set (vals weights)) (:layerId %)))
(every? #(= 600 (:width %)))
(not))]
{:glyphname (:glyphname glyph)
:layers (mapv layer (:layers glyph))})]
(doseq [glyph glyphs]
(fipp/pprint glyph {:width 200}))
(count glyphs))))))
;; (-main)
;; (save-not600)
;; (-> (slurp "FiraCode.glyphs") parse keys)
;;